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P. 1. HIEBERTL THERMOSTATIC VALVE. APPLICATION FILED J AN.29. 1919.

. 1 ,323,593. Patented Dec. 2,1919.

amen/6oz PETER. HIEBER'I', OF OKLAHOMA, OKLAHOMA.

THERMOSTATIC VALVE.

- Specification of Letters Patent.

Patented Dec. 2, 1919.

Application filed January 29, 1919. Serial No. 273,909.

i To all whom it may concern:

Be it known that I, PETER J. HIEBERT, a

citizen of the United States, residing at Oklahoma, in the county of Oklahoma and State of Oklahoma, have invented certain new and useful Improvements in Thermo static Valves, of which the following is a specification. 1

Thisinvention relates to thermostatically controlled valves. The object of the invention is to provide a simple and efficient device for automatically cutting off the supply of gas should the burner be extinguished for any reason.

Another object is to provide a device of this character in which a thermostat is connected to automatically cut off a gas burner valve when the flame is extinguished, and which will hold the-valve open as long as the flame remains lighted.

Another object is'to so connect a thermostat and valve that they may bereadily disconnected when it is desired to operate the valve by hand.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings Figure 1 represents a side elevation of a gas bracket equipped with this improvement,

Fig. 2 is a similar view showing a slightly diflerent form of the invention applied,

Fig. 3 is a similar view showing the invention applied to a valve for controlling the supply of gas to a plurality of burners, and

Fig. 4: is a side elevation showing a slightly different form of the invention.

In the embodiment illustrated, a gas bracket B of usual construction is shown, having a burner B with a valve V for controlling the supply of gas to the burner. The valve V has an actuating arm 1 provided at its terminal with a finger 2 for a purpose presently to be described. A thermostat 3 in the form shown in Fig. 1, depends from the bracket B directly below the burner B and its lower end is connected with one arm 10 of a bell crank. lever 8, the

other arm 9 of which extends downwardly and is connected atits free endwith a bar 5.

The bell crank .8 is shown fulcrumed on a bracket 11 which depends from the burner bracket B and may be secured thereto in any suitable manner.

The bar 5 has a loop 6 formed at its rear end and extending longitudinally thereof, the upper wall of said loop being provided with a plurality of ratchet teeth 7 with which is designed to be engaged the finger 2 carried by the valve actuating arm 1. It will be seen by this connection that the bar 5 may be disconnected from the arm 1 at will, which is desirable when the valve arm 1 is to be actuated by hand. 7

From the above description it will be obvious that when the gas burner B is lighted the heat emanating therefrom will expand the thermostat 3 as shown in full lines in Fig.1, thereby moving lever arm 10 downwardly and the arm 9 rearwardly carrying with it the control bar 5, which movement will open valve V and hold it open as long as the burner remains burning. Immediately the flame ofthe burner is extinguished, the thermostat 3 will contract or collapse, thereby exerting an upward pull on lever arm 10 and a forward pull on the bar 5, which will move the arm 1 forwardly into the dotted line position shown in Fig. 1, and close valve V so that all danger of gas escaping from the burner will be prevented.

In the form shown in Fig. 2 the structure is the same except that the thermostat 3 is carried by an arm 4. depending from the burner B and the members of the thermostat are disposed vertically instead of horizontally as in the structure shown in Fig. 1. In this form thevalve actuating bar 5 is connected directly with the thermostat instead of through a bell crank. The operation, however, will be exactly the sameas in the structure above described.

In the use of this device, the lever or arm 1 is first turned by hand into open position against the tension of the spring 1 which exerts its tension to hold the valve normally closed and to return it to closed position after it has been opened. This valve after being opened, and the burner B lighted, will be held by hand until the thermostat 3 expands and then the arm may be released and said thermostat will hold the valve open as'long as the burner remains lighted. As

soon as the burner is extinguished the thermostat will collapse and exert its contracting forceto close the valve which is also assisted by the spring 1*.

In the form shown in Fig. 3, the thermostat 3 is suspended above a small gas burner thermostat 3 and is designed to open anl close the valve on the expansion and contraction of the thermostat in the same manner as above described.

V In the form shown in Fig. 4, the bracket B, burner B, valve V, thermostat 3, valve arm or lever 1, bracket 11, and bell crank 8 are the same as those shown in Fig. 1, the only difference being in the member 5 which connects levers 1 and 8. This member 5 in Fig. 1 is shown in the form of a spring bar shown constructed of a coiled spring which operates to close valve V when the thermostat 3 contracts thus'avoiding the necessity of using a'spring on the valve. Moreover, when the tension of this spring is relaxed as shown in full lines in Fig. 4 the lever 1 may 7 be adjusted to regulate the flame in the usual .manner.

K From the foregoing description, taken in connect on wlth the accompanylng draw inlet-S, 'e e s ef he pen ratio and of the method of operation will be readily apparent to those skilled in the art to which the invention appertains' and while I have described theprinciple of operation of the invention together with the device which I now consider to be the best. embodiment J thereof, Idesire to have it understood that the device shown is v'merely illustrative and that such changes may be made as are within the scope of the claimed invention.

what I' claim as new and desire to secure by Letters Patent, is :-Y

.. Having thus fully described' my invention,-

The combination with a gas burner havinga supply control valve equipped with an operating arm having a laterally extending finger, a thermostat positioned toreceive heat from the burner when the latter is lighted, a bar connected with said thermostat and operable longitudinally on the expansion and contraction of thethermostat, said bar having at its freeend an elongated longitu- PETER J. HIEBEBT.

" Witnesses: V

J. T. YEA AN, G. L. SEATON. 

